He prepares for the day...
He uses other people's blood as mouthwash and he stitches himself after he got stabbed or wounded.
He left the blood on his clothes just to remind him of his killing history.
He goes inside a random persons house and loots there food storage and checks and looks for them and kills them till there's no breath left.
He cuts there bodies up
He eats there remains and goes to the next house.His daily routine but it all changed when he went inside Jokers house....
He goes inside the building and inside has smiles and laughter.The murder was put to sleep by the fumes under his feet.....He wakes up to somewhere new